The Iowa plain dealer. [volume] (New Oregon, Howard County, Iowa) 1867-1895, 1887-11-17
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SCIENCE AND INDUSTRY.

SCIENCE AND INDUSTRY.
is it not better to work and win
than to play and lose2
"A large number of small tobacco
factories are being started in Florida
to work up the tobacco grown in the
State.
Grand Duke Nicholas, Of Russia,
is credited with being an enthusiastic
student of natural history, and with
new work on the entomology Of the
Caucasus.
A good photograph Of the seventh
moon Of Saturn has been obtained by
the Messrs Henry, at the Paris obServ-
atory. The Photographic plate had
to be exposed thirty-tve minutes. This
moon is known to astronomers as
Hyperion. and was the last satellite OF
Saturn to be discovered. 7. Ledger.
The manufacture Of solid carbonic
acid gas is said to have become a
settled industry in Berlin. 1t is put in
small cylinders and if kept under pres
sure will last some time; that is
cylinder one and half inches in
diameter and two inches long takes
five hours to melt away into gas.
If the statements which come from
Brazil on the subject are trustworthy.
the Freire system of incubation against
yellow fever certainly seems to be efiica-
cious. The mortality from the disease
in Rio de Janeiro is said to be ten times
as great among those who have not
been treated by DR.. Frere's method as
| among persons who have been inocu-
lated.-N Y Ledger.
The entire annual production OF the
cordage mills of the United States, it is
stated, is about 10000 tons. valued at
about $24,OOO.OOO. Of this, about 40.-
600 tons is binder twine. and the bal
ance is rope Of all sizes. from the largest
hawser down to the ordinary manila
tarred rope most used by sailors in spill
cling and repairs. Opinion.
DIR. John Vansant, of the United
States marine hospital at St. Louis,
claims to be the first to have taken
photographs by the light Of tireflies.
He placed twelve fireflies in three
ounce bottle, covering its mouth with
| fine bobinet. The average duration OF
the fash of each insect was half =
| second. and the luminous area on the
abdomen was about one-eighth Of an
inch square. The time of exposure was
fifty flashes.
Faye, the French meteorologist.
thinks the movement Of tornado is
not ascending, as some scientists sup
pose it to be, but descending. pene-
trating the lower LAYERS of the atmos-
phere like corkscrew. The destruct-
i've effects of these storms are ascribed
/ to the violent shock occasioned by the
collision Of the descending spirals with
the ground, and the energy is not ap-
parently lessened by this contact. mas
much as it is constantly renewed from
above, and transmitted to tho earth by
the rotary motion downwards. r
Ledger.
"A French Fuel: The plan Of util-.
izing coke dust by making it into bri-
quettes has been successfully adopted
by a gas company at. Lyons, France.
This is accomplished by mixing each
ton of fine coke with about POO pounds
Of coai-tar pitch and then passing
through a compressing machine. The
total cost is "a per ton. and the product
readily sells for $3.50 to IS per ton.
The expense for the plant, with ca
pacity Of sixty-five tons daily, was only
Is. 5.OOO.-ArkansaW Trareier.
We learn from the Pittsburgh Iron
World that Pittsburgh steel-makers
have established agencies for the sale
Of the finer grades Of steel suitable for
making cutlery in Europe. India and
Australia. Their sales have been SO
considerable as to practically guarantee
an established trade. Steel has been
sold in competition with English-made
steel at the same prices. and. the World
says, 1.-THE prices, under the circum-
stances, were entirely satisfactory to
the producers.
The barramanda proves to be
connecting link of primary rank
between the oldest surviving group
of fishes and the lowest air.
breathing animals like the frogs
and salamanders. 1t leaves its ma
tive streams at night and sets out
on foraging expedition after vegetable
food in the neighboring woodlands. 1t
has both lungs and gills. It can
breathe either air or water at will. or,
if it chooses. the two together. Though
covered with scales and most fish-like
in outline. it presents points of ana
tomical resemblance both to sala-
manders and lizards. and is connect
ing bond between the North American
mud fish on the one hand and the won-
derful lepidosiren on the other